Glossary of SSA attributes

This Glossary alphabetically lists all attributes used in the SSA database(s) held in the SSA. If you would like to have more information about the schema tables please use the SSA Schema Browser.
A B C D E F G H I J K L M
N O P Q R S T U V W X Y Z

M

NameSchema TableDatabaseDescriptionTypeLengthUnitDefault ValueUnified Content Descriptor
madgCorMagB Source F287 Median absolute deviation on meangCorMagB real 4 mag -0.99999995e9 ERROR
madgCorMagI Source F287 Median absolute deviation on meangCorMagI real 4 mag -0.99999995e9 ERROR
madgCorMagR Source F287 Median absolute deviation on meangCorMagR real 4 mag -0.99999995e9 ERROR
madgCorMagU Source F287 Median absolute deviation on meangCorMagU real 4 mag -0.99999995e9 ERROR
madsCorMagB Source F287 Median absolute deviation on meansCorMagB real 4 mag -0.99999995e9 ERROR
madsCorMagI Source F287 Median absolute deviation on meansCorMagI real 4 mag -0.99999995e9 ERROR
madsCorMagR Source F287 Median absolute deviation on meansCorMagR real 4 mag -0.99999995e9 ERROR
madsCorMagU Source F287 Median absolute deviation on meansCorMagU real 4 mag -0.99999995e9 ERROR
magCol Plate F287 Name of magnitude column in reference catalogue varchar 16   None REMARKS
magCol Plate PSSA Name of magnitude column in reference catalogue varchar 16     REMARKS
magCol Plate SSA Name of magnitude column in reference catalogue varchar 16     REMARKS
magLimit Survey PSSA Nominal mag limit of survey, eg. 22.5 for Bj real 4     PHOT_MAG_LIMIT
magLimit Survey SSA Nominal mag limit of survey, eg. 22.5 for Bj real 4     PHOT_MAG_LIMIT
magMax Plate F287 Maximum instrumental mag in IAM file real 4   -0.99999995e9 PHOT_MAG_LIMIT
magMax Plate PSSA Maximum instrumental mag in IAM file real 4     PHOT_MAG_LIMIT
magMax Plate SSA Maximum instrumental mag in IAM file real 4     PHOT_MAG_LIMIT
magMin Plate F287 Minimum instrumental mag in IAM file real 4   -0.99999995e9 PHOT_MAG_LIMIT
magMin Plate PSSA Minimum instrumental mag in IAM file real 4     PHOT_MAG_LIMIT
magMin Plate SSA Minimum instrumental mag in IAM file real 4     PHOT_MAG_LIMIT
masterObjID SourceNeighbours, SourceXDetection F287 The object identifier from the Source table bigint 8   -99999999 ID_MAIN
masterObjID SourceXKnownQSO F287 The object identifier from the F287 Source table bigint 8   -99999999 ID_MAIN
maxIter Plate F287 Maximum no. of iterations for non-linear astrometric fit int 4   -99999999 NUMBER
maxIter Plate PSSA Maximum no. of iterations for non-linear astrometric fit int 4     NUMBER
maxIter Plate SSA Maximum no. of iterations for non-linear astrometric fit int 4     NUMBER
meanClass Source F287 Discrete image class code based on ranges of meanClassStat tinyint 1   0 CLASS_OBJECT
meanClass Source PSSA Estimate of image class based on unit-weighted mean of individual classes tinyint 1     CLASS_OBJECT
meanClass Source SSA Estimate of image class based on unit-weighted mean of individual classes tinyint 1     CLASS_OBJECT
meanClassStat Source F287 N(0,1) sum of available individual stack profile statistics, prfStat real 4 N(0,1) -0.99999995e9 CLASS_STAR/GALAXY
meangCorMagB Source F287 Mean colour-corrected galaxian B magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_B
meangCorMagI Source F287 Mean colour-corrected galaxian I magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_I
meangCorMagR Source F287 Mean colour-corrected galaxian R magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_R
meangCorMagU Source F287 Mean colour-corrected galaxian U magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_U
meansCorMagB Source F287 Mean colour-corrected stellar B magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_B
meansCorMagI Source F287 Mean colour-corrected stellar I magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_I
meansCorMagR Source F287 Mean colour-corrected stellar R magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_R
meansCorMagU Source F287 Mean colour-corrected stellar U magnitude over available epochs real 4 mag -0.99999995e9 PHOT_PHG_U
mjd Plate F287 Modified Julian Date at mid exposure float 8 Julian days -0.99999995e9 TIME_DATE
mjd Plate PSSA Modified Julian Date at mid exposure float 8 Julian days   TIME_DATE
mjd Plate SSA Modified Julian Date at mid exposure float 8 Julian days   TIME_DATE
mp_flg twomass_psc 2MASS Minor Planet Flag. smallint 2     CODE_MISC
mp_flg twomass_sixx2_psc 2MASS src is positionally associated with an asteroid, comet, etc smallint 2      
mp_key twomass_xsc 2MASS key to minor planet prediction DB record. int 4     ID_NUMBER
muAcosD Source PSSA Proper motion in RA direction real 4 mas/yr -0.99999995e9 POS_EQ_PMRA
muAcosD Source SSA Proper motion in RA direction real 4 mas/yr -0.99999995e9 POS_EQ_PMRA
muD Source PSSA Proper motion in Dec direction real 4 mas/yr -0.99999995e9 POS_EQ_PMDEC
muD Source SSA Proper motion in Dec direction real 4 mas/yr -0.99999995e9 POS_EQ_PMDEC



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WFAU, Institute for Astronomy,
Royal Observatory, Blackford Hill
Edinburgh, EH9 3HJ, UK

mar@roe.ac.uk
16/01/2026